enable using udev for automatic module loading

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>

mk/kernel.mk

@@ -14,7 +14,8 @@ INSTALL_TARGETS:= $(KERNEL_PKG)
 NOINSTALL_TARGETS:=
 TARGETS:=
 
-# KMOD_template
+ifneq ($(ADK_RUNTIME_DEV_UDEV),y)
+# KMOD_template (not used for udev which autoloads modules)
 #
 # Adds a target for creating a package containing
 # the specified (kernel-provided) modules.
@@ -72,5 +73,6 @@ endif
 	$${RSTRIP} $${I_$(1)} $(MAKE_TRACE)
 	$(PKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR) $(MAKE_TRACE)
 endef
+endif
 
 include $(BUILD_DIR)/.kernelconfig

package/base-files/Makefile

@@ -23,6 +23,11 @@ INSTALL_STYLE:=		manual
 
 do-install:
 	$(CP) ./src/* $(IDIR_BASE_FILES)
+ifeq ($(ADK_RUNTIME_DEV_MDEV),y)
+	$(CP) ./files/rcdev.mdev $(IDIR_BASE_FILES)/etc/init.d/rcdev
+else ifeq ($(ADK_RUNTIME_DEV_UDEV),y)
+	$(CP) ./files/rcdev.udev $(IDIR_BASE_FILES)/etc/init.d/rcdev
+endif
 ifeq (${ADK_TARGET_ROOTFS_NFSROOT},y)
 	@echo "#" > $(IDIR_BASE_FILES)/etc/network/interfaces
 endif
@@ -73,6 +78,7 @@ endif
 	ln -sf ../proc/mounts $(IDIR_BASE_FILES)/etc/mtab
 	rm -rf $(IDIR_BASE_FILES)/var
 	ln -sf tmp $(IDIR_BASE_FILES)/var
+	ln -sf var/run $(IDIR_BASE_FILES)/run
 	test -z $(ADK_RUNTIME_SHELL) || \
 	    cat ./files/inittab.shell >> $(IDIR_BASE_FILES)/etc/inittab
 ifeq ($(ADK_TARGET_WITH_VGA),y)

package/base-files/files/rcdev.mdev

@@ -0,0 +1,7 @@
+# start mdev dynamic device node management
+echo >/dev/mdev.seq
+if [ -f /proc/sys/kernel/hotplug ];then
+	echo "/sbin/mdev" >/proc/sys/kernel/hotplug
+fi
+# creates f.e. /dev/root
+mdev -s

package/base-files/files/rcdev.udev

@@ -0,0 +1,4 @@
+# start udev dynamic device node management
+udevd --daemon
+udevadm trigger
+udevadm settle

package/base-files/src/etc/init.d/rcS

@@ -13,14 +13,6 @@ fi
 # remount /dev with smaller size
 mount -o remount,nosuid,size=128k,mode=0755 -t tmpfs mdev /dev
 
-# start mdev dynamic device node management
-echo >/dev/mdev.seq
-if [ -f /proc/sys/kernel/hotplug ];then
-	echo "/sbin/mdev" >/proc/sys/kernel/hotplug
-fi
-# creates f.e. /dev/root
-mdev -s
-
 # seed some random
 cat /etc/.rnd >/dev/urandom 2>&1
 
@@ -42,6 +34,9 @@ mkdir -p /var/tmp
 touch /var/log/lastlog
 touch /var/log/wtmp
 
+# start dynamic device node management
+[ -f /etc/init.d/rcdev ] && . /etc/init.d/rcdev
+
 HOSTNAME=
 [[ -s /etc/hostname ]] && HOSTNAME=$(cat /etc/hostname)
 HOSTNAME=${HOSTNAME%%.*}

package/eudev/Makefile

@@ -9,7 +9,7 @@ PKG_RELEASE:=		2
 PKG_HASH:=		d3a0c7f613d4917b89afd57498860a1c35b9c59abf9fea22a09c30eec25c32e4
 PKG_DESCR:=		device manager (udev clone)
 PKG_SECTION:=		sys/utils
-PKG_BUILDDEP:=		gperf-host glib
+PKG_BUILDDEP:=		gperf-host kmod-host glib
 PKG_DEPENDS:=		glib kmod
 PKG_URL:=		http://wiki.gentoo.org/wiki/Project:Eudev
 PKG_SITES:=		http://dev.gentoo.org/~blueness/eudev/

package/kmod/Makefile

@@ -20,8 +20,10 @@ PKG_SUBPKGS:=		KMOD LIBKMOD
 PKGSD_LIBKMOD:=		kernel module library
 PKGSC_LIBKMOD:=		libs/misc
 
+include $(ADK_TOPDIR)/mk/host.mk
 include $(ADK_TOPDIR)/mk/package.mk
 
+$(eval $(call HOST_template,KMOD,kmod,$(PKG_VERSION)-${PKG_RELEASE}))
 $(eval $(call PKG_template,KMOD,kmod,$(PKG_VERSION)-${PKG_RELEASE},${PKG_DEPENDS},${PKG_DESCR},${PKG_SECTION}))
 $(eval $(call PKG_template,LIBKMOD,libkmod,$(PKG_VERSION)-${PKG_RELEASE},${PKGSS_LIBKMOD},${PKGSD_LIBKMOD},${PKGSC_LIBKMOD},${PKG_OPTS}))
 
@@ -44,4 +46,11 @@ libkmod-install:
 	$(CP) $(WRKINST)/usr/lib/libkmod*.so* \
 		$(IDIR_LIBKMOD)/usr/lib
 
+HOST_CONFIGURE_ARGS+=	--disable-manpages \
+			--disable-logging
+
+hostpost-install:
+	ln -sf kmod $(STAGING_HOST_DIR)/usr/bin/depmod
+
+include ${ADK_TOPDIR}/mk/host-bottom.mk
 include ${ADK_TOPDIR}/mk/pkg-bottom.mk

package/kmod/patches/patch-libkmod_libkmod-util_c

@@ -1,24 +0,0 @@
---- kmod-15.orig/libkmod/libkmod-util.c	2013-07-15 17:45:31.000000000 +0200
-+++ kmod-15/libkmod/libkmod-util.c	2013-12-21 18:02:49.000000000 +0100
-@@ -28,6 +28,7 @@
- #include <unistd.h>
- #include <errno.h>
- #include <string.h>
-+#include <limits.h>
- #include <ctype.h>
- 
- #include "libkmod.h"
-@@ -323,8 +324,12 @@ static inline int is_dir(const char *pat
- int mkdir_p(const char *path, int len, mode_t mode)
- {
- 	char *start, *end;
-+	char buf[PATH_MAX+1];
- 
--	start = strndupa(path, len);
-+	snprintf(buf, sizeof buf, "%s", path);
-+	assert(len < sizeof(buf));
-+	buf[len] = 0;
-+	start = buf;
- 	end = start + len;
- 
- 	/*

target/Makefile

@@ -135,6 +135,12 @@ clean: $(ADK_TARGET_ARCH)-clean $(ADK_TARGET_ARCH)-imageclean
 
 %-imageprepare:
 	$(TRACE) target/$(patsubst %-imageprepare,%,$@)-imageprepare
+ifeq ($(ADK_RUNTIME_DEV_UDEV),y)
+	$(CP) -a $(BUILD_DIR)/linux-$(ADK_TARGET_ARCH)/modules/lib $(TARGET_DIR)
+	rm -f "$(TARGET_DIR)/lib/modules/$(ADK_KERNEL_VERSION)/build" \
+	      "$(TARGET_DIR)/lib/modules/$(ADK_KERNEL_VERSION)/source"
+	$(STAGING_HOST_DIR)/usr/bin/depmod -a -b $(TARGET_DIR) $(ADK_KERNEL_VERSION)
+endif
 	@for x in $$(ls $(ADK_TOPDIR)/scripts/preimage/*.sh 2>/dev/null); do \
 		[[ -x "$$x" ]] && $$x; \
 		break; \

target/linux/kernel.config

@@ -27,7 +27,6 @@ CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_SCRIPT=y
 CONFIG_HOTPLUG=y
 CONFIG_UEVENT_HELPER=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/mdev"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_STANDALONE=y